23055745 has 4 divisors (see below), whose sum is σ = 27666900. Its totient is φ = 18444592.

The previous prime is 23055731. The next prime is 23055749. The reversal of 23055745 is 54755032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13593969 + 9461776 = 3687^2 + 3076^2 .

It is a cyclic number.

It is not a de Polignac number, because 23055745 - 2⁵ = 23055713 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (23055749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2305570 + ... + 2305579.

It is an arithmetic number, because the mean of its divisors is an integer number (6916725).

Almost surely, 2^23055745 is an apocalyptic number.

It is an amenable number.

23055745 is a deficient number, since it is larger than the sum of its proper divisors (4611155).

23055745 is an equidigital number, since it uses as much as digits as its factorization.

23055745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611154.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 23055745 is about 4801.6398240601. The cubic root of 23055745 is about 284.6162682166.

The spelling of 23055745 in words is "twenty-three million, fifty-five thousand, seven hundred forty-five".